/*
 * Copyright (C) 2012 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package org.ros.internal.transport;

/**
 * A listener for handshake events.
 * 
 * @author damonkohler@google.com (Damon Kohler)
 */
public interface ClientHandshakeListener {

  /**
   * Called when the {@link ClientHandshake} completes successfully.
   * 
   * @param outgoingConnectionHeader
   * @param incomingConnectionHeader
   */
  void onSuccess(ConnectionHeader outgoingConnectionHeader,
      ConnectionHeader incomingConnectionHeader);

  /**
   * Called when the {@link ClientHandshake} fails.
   * 
   * @param outgoingConnectionHeader
   * @param errorMessage
   */
  void onFailure(ConnectionHeader outgoingConnectionHeader, String errorMessage);
}
